Mantis - Resin
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ID: Category: Severity: Reproducibility: Date Submitted: Last Update:
5837 minor random 12-08-14 02:29 03-01-15 10:47
Reporter: samadams Platform:  
Assigned To: ferg OS:  
Priority: normal OS Version:  
Status: closed Product Version: 4.0.41  
Product Build: Resolution: fixed  
Projection: none      
ETA: none Fixed in Version: 4.0.44  
Summary: 0005837: NullPointerException when closing WebSocketPrintWriter
Description: I've seen the following exception when calling close() on WebSocketPrintWriter:

Exception in thread "pool-166-thread-48" java.lang.NullPointerException
at com.caucho.remote.websocket.WebSocketWriter.complete(WebSocketWriter.java:251)
at com.caucho.remote.websocket.WebSocketWriter.close(WebSocketWriter.java:200)
at com.caucho.remote.websocket.WebSocketPrintWriter.close(WebSocketPrintWriter.java:56)

Code snippet:

    public void publishMessage(final WebSocketContext context, final String message) throws IOException {

        PrintWriter writer = null;
        try {
            writer = context.startTextMessage();
            writer.print(message);
        } finally {
            if (writer != null) {
                writer.close();
            }
        }
    }
Steps To Reproduce:
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